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About

Emotion is a performant, flexible CSS-in-JS library designed for writing CSS styles using JavaScript, supporting both string-based and object-based styles while delivering a strong developer experience, complete with source maps, labels, and testing utilities. It offers two powerful usage patterns; a framework-agnostic approach which requires no special configuration yet supports vendor-prefixing, nested selectors, media queries, and class composition through the CSS and CX functions; and a React-optimized variant providing advanced features like the CSS prop for direct styling (similar to the style prop but with support for nested selectors, media queries, and theming capabilities), zero-configuration server-side rendering, native theming, and compatibility with ESLint tooling. Emotion also supports styled-component-like APIs, enabling tag-based or component-based styled elements with dynamic prop-driven styling.

About

PropLine is a real-time player-props betting odds API serving 54 sports and 25 books — including Pinnacle and six exchanges (Kalshi, Polymarket, Smarkets, Matchbook, Novig, ProphetX) that the-odds-api and OddsJam don't carry. It is the only odds API that resolves player props against actual box scores: every Over/Under outcome ships with won/lost/push/void plus the real stat value. Pricing is per request, not per credit, so player props and alternate lines don't multiply your bill the way they do on credit-metered APIs. The response schema is the-odds-api-compatible, so migrating is a base-URL change. Free tier is 1,000 requests/day, no credit card; Hobby is $9/mo for 5,000/day and unlocks every paid feature — cross-book +EV, line history, closing lines and graded resolution; Pro is $19/mo for 25,000/day, adding CSV exports; Streaming Lite is $39/mo for 100,000/day and Streaming is $79/mo for 1M/day, both with HMAC-signed webhooks. Official Python, Node, MCP and CLI SDKs.

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Audience

Frontend developers searching for a type-safe, and highly maintainable CSS-in-JS styling tool with server-side rendering support and advanced theming

Audience

Sports betting developers, quant/algo bettors, DFS tool builders, bet-tracker and odds-comparison apps, sports data engineers

Support

Phone Support
24/7 Live Support
Online

Support

Phone Support
24/7 Live Support
Online

API

Offers API

API

Offers API

Screenshots and Videos

Screenshots and Videos

Pricing

Free
Free Version
Free Trial

Pricing

$0 (free tier) / $9 per month
Free Version
Free Trial

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Reviews/Ratings

Overall 5.0 / 5
ease 4.8 / 5
features 5.0 / 5
design 4.8 / 5
support 5.0 / 5

Pros & Cons from Real Users

Pros

  • Great collection of bookmakers (not just 20 copies 1xbet clones) , combining breadth and sharpness. Huge amount of features. Historical data available too, but I have not tried.
  • - Reliable - Easy to use - Plenty of data - Never run out of API calls especially with well priced webhooks - Most cost efficient product on the market and it's not even close
  • -Reliability is top notch quality -Accuracy is phenomenal -Data speeds are excellent - Support is available 24/7. They respond almost immediately if there is an issue.
  • PropLine has been one of the best APIs I’ve worked with. The API is fast, well documented, and easy to integrate, with excellent coverage across sports and player props. What really stands out is the support. The team listens to feedback, responds quickly, and has shipped multiple improvements based on real developer suggestions. The pricing is also very fair compared to other sports data providers.
  • -They sell results (no fluff) - they dont waste time - CHEAPER and BETTER then oddsapi by a mile. - Pretty straightforward

Cons

  • I mean frankly, none. Any system like that occasionally has issues, and when I found something and emailed support the issue was fixed really fast, once literally within minutes.
  • Really can't think of much, maybe there could be a few more books but I know that is something Andy is consistently working on and I have no doubt those will come in the near future.
  • No cons found. I have been using on a daily basis since April 2026 and have zero complaints. If I had to "find" a con to list, it would be building out Prop-Line with the intent of Live Betting. During Live betting, Odds & Lines change frequently so it's a complete different beast.
  • I honestly don’t have any major complaints. I’d love to see the platform continue expanding with even more sports, markets, and documentation over time, but the team has been consistently improving the product and adding new features.
  • - This brand isn’t out enough like oddapi. If i found this brand when I first started. My project would’ve took hours instead of weeks.

Training

Documentation
Webinars
Live Online
In Person

Training

Documentation
Webinars
Live Online
In Person

Company Information

Emotion
United States
emotion.sh/docs/introduction

Company Information

PropLine
Founded: 2026
United States
prop-line.com

Alternatives

Alternatives

Sports Game Odds API

Sports Game Odds API

Sports Game Odds
PropTrackr

PropTrackr

North Shore Enterprises
Propmaster

Propmaster

Narra no ki Inc.

Categories

Categories

Integrations

CSS
JavaScript
Kalshi
Kombai
Polymarket
React

Integrations

CSS
JavaScript
Kalshi
Kombai
Polymarket
React
Claim Emotion and update features and information
Claim Emotion and update features and information
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Claim PropLine and update features and information